But the reward is only one side of the righteous judgment foretold by the suffering of the innocent. It includes punishment as well. "It is a righteous thing with God to recompense affliction to them that afflict you." We see here the very simplest conception of God's justice. It is a law of retribution, of vindication; it is the reaction, in this particular case, of man's sin against himself. The reaction is inevitable: if it does not come here, it comes in another world; if not now, in another life. The hope of the sinner is always that in some way or other this reaction may never take place, or that, when it does take place, it may be evaded; but that hope is doomed to perish. "If it were done when 'tis done," he says as he contemplates his sin in prospect; but it never _is_ so done; it is exactly half done when he is finished with it; and the other half is taken in hand by God. Punishment is the other half of sin; as inseparable from it as heat from fire, as the inside of a vessel from the outside. "It is a righteous thing with God to recompense affliction to them that afflict you." "Whatsoever a man soweth, that shall he also reap."
One of the favourite pastimes of some modern historians is the whitewashing of persecutors. A dispassionate interest in the facts shows, we are told, in many cases, that the persecutors were not so black as they have been painted, and that the martyrs and confessors were no better than they should have been. Where fault is found at all, it is laid rather at the door of systems than of individuals; judgment is passed on institutions and on centuries that persons and their actions may go free. Practically that comes to writing history, which is the story of man's moral life, without recognising the place of conscience; it may sometimes have the look of intelligence, but at bottom it is immoral and false. Men must answer for their actions. It is no excuse for murdering the saints that the murderers think they are doing God service; it is an aggravation of their guilt. Every man knows that it is wicked to afflict the good; if he does not, it is because he has quite corrupted his conscience, and therefore has the greater sin. Moral blindness may include and explain every sin, but it justifies none; it is itself the sin of sins. "It is a righteous thing with God to recompense affliction to those who afflict." If they cannot put themselves by sympathy into the place of others--which is the principle of all right conduct--God will put them in that place, and open their eyes. His righteous judgment is a day of grace to the innocent sufferers; He rewards their trouble with rest; but to the persecutor it is a day of vengeance; he eats the fruit of his doings.
It is characteristic of this Epistle, and of the preoccupation of the Apostle's mind when he wrote it, that he here expands his notice of the time when this judgment is to take place into a vivid statement of its circumstances and issues. The judgment is executed at the _revelation_ of the Lord Jesus from heaven, with the angels of His power, in flaming fire. "At this moment," he would say, "Christ is unseen, and therefore by wicked men ignored, and sometimes by good men forgotten; but the day is coming when every eye shall see Him." The Apostle Peter, who had seen Christ in the flesh, as Paul had never done, and who probably felt His invisibility as few could feel it, is fond of this word "revelation" as a name for His reappearing. He speaks of faith which is to be found unto praise and honour and glory at the _revelation_ of Jesus Christ. "Be sober," he says, "and hope to the end for the grace that is being brought to you at the _revelation_ of Jesus Christ." And in another passage, much in keeping with this of St. Paul's, he says, "Inasmuch as ye are partakers of Christ's sufferings, rejoice; that at the _revelation_ of His glory also ye may rejoice with exceeding joy." It is one of the great words of the New Testament; and its greatness is heightened in this place by the accompanying description. The Lord is revealed, attended by the angels of His power, in flaming fire. These accessories of the Advent are borrowed from the Old Testament; the Apostle clothes the Lord Jesus at His appearing in all the glory of the God of Israel.[24]